Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 134 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
2. 2.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) cloud server (d) microcontroller
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
6. 6.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) acts on a command (d) measures the real world
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
9. 9.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a paper calendar (d) a fitness band with app
13. 13.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
14. 14.What does the actuator do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) carries the data
15. 15.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a plain table fan (d) a paper calendar
16. 16.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
17. 17.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
18. 18.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
19. 19.What does the sensor do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
21. 21.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi smart plug
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
26. 26.🌐 In an IoT system, which part stores data online? (a) actuator (b) microcontroller (c) cloud server (d) phone app
27. 27.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a smart energy meter (d) a plain wall switch
28. 28.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
30. 30.What does the phone app do? (a) shows data to you (b) measures the real world (c) acts on a command (d) carries the data
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
32. 32.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
37. 37.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
38. 38.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a fitness band with app (d) a plain wall switch
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
40. 40.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain table fan (d) a Wi-Fi weather station

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